The Same Number Of Ones Riddle
Hint:
The Magic Number Riddle
Think of a number
Multiply times 2
Add 6
Divide by 2
Subtract the first number you thought of
What is the number you came up with?
Multiply times 2
Add 6
Divide by 2
Subtract the first number you thought of
What is the number you came up with?
Hint:
The answer is 3
If you got a different number you did the math wrong Did you answer this riddle correctly?
YES NO
If you got a different number you did the math wrong Did you answer this riddle correctly?
YES NO
Finding The Number Riddle
What number am I? I am a three digit number. My tens digit is five more than my ones digit. My hundreds digit is eight less than my tens digit.
Hint:
Two Door Coops Riddle
Hint:
Because if they had four doors, they'd be chicken sedans. Did you answer this riddle correctly?
YES NO
YES NO
Shooting Mr. Door Riddle
Mr. Box drove up to the house where Mr. Door lived carrying a box in his hand. He was smiling as he rang the doorbell. When Mr. Door opened the door, Mr. Boxs smile melted away. Mr. Box took out a gun and shot Mr. Door. Why?
Hint:
Mr. Box and Mr. Door had been in the navy together years ago. They had both been on a ship that had shipwrecked in the Pacific. A group of men had survived on a liferaft but didnt have any food. Mr. Door was a navy doctor. He suggested that he would amputate each of their left arms for food. There was, however, no other doctor available to amputate Mr. Doors arm. To make it fair, Mr. Door promised that when they were back home again, he would have his arm amputated also. Mr. Door had sent Mr. Box an arm in the mail. Mr. Box assumed it was Mr. Doors arm, but when Mr. Box visited Mr. Door and saw that he still had both of his arms, he became very angry that Mr. Door had not followed through on his side of the bargain and shot him. Did you answer this riddle correctly?
YES NO
YES NO
The Prime Number Riddle
Two hundred people in an auditorium are asked to think of a single digit number from 1 to 9 inclusive and write it down. All those who wrote down a prime number are now asked to leave. Ninety people remain behind in the hall. How many of these are expected to have written down an odd number?
Hint: Remember that 1 is not a prime number.
Those that remain behind must have written {1,4,6,8,9} and from this only {1,9} are odd. The probability of an odd number is thus 2/5.
Expected number of odds is 2/5 * 90 = 36 Did you answer this riddle correctly?
YES NO
Expected number of odds is 2/5 * 90 = 36 Did you answer this riddle correctly?
YES NO
Angel And Devil Door Riddle
You're standing in front of 2 identical doors.
One leads to heaven, one leads to hell.
There is an angel and a devil.
They are identical, but the angel always tells the truth, the devil always lies.
How do you find out which door leads to heaven?
One leads to heaven, one leads to hell.
There is an angel and a devil.
They are identical, but the angel always tells the truth, the devil always lies.
How do you find out which door leads to heaven?
Hint:
Ask either one of them which door "THE OTHER ONE" would tell you was heaven... and that's the hell door. Did you answer this riddle correctly?
YES NO
YES NO
Positive Numbers
Hint:
One Odd Number
Hint:
Only Self-Enumerating Number
Hint:
Four. The number four has four letters, making it self-enumerating. Did you answer this riddle correctly?
YES NO
YES NO
An Odd Number Made Even Riddle
Hint:
I Am A 1 Digit Number
Hint:
Even Number Riddle
Hint:
A 2-digit Number Riddle
Hint:
Not An Even Number Riddle
Hint:
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